Hu, Fang Zhong et al. published their research in Acta Crystallographica, Section E: Structure Reports Online in 2005 | CAS: 33097-39-1

3,6-Difluoropyridazine (cas: 33097-39-1) belongs to pyridazine derivatives. The pyridazine structure is a popular pharmacophore which is found within a number of herbicides such as credazine, pyridafol and pyridate. The activity depends upon the changes of substituted groups in the pyridazine ring system resulting in different biological activities. In addition, the natural pyrimidine bases uracil, thymine, and cytosine, which are constituents of the nucleic acids, are found to be the most important naturally occurring diazines.COA of Formula: C4H2F2N2

3,6-Bis(4-methoxybenzyloxy)pyridazine was written by Hu, Fang Zhong;Zhang, Min;Song, Hai Bin;Zou, Xiao Mao;Yang, Hua Zheng. And the article was included in Acta Crystallographica, Section E: Structure Reports Online in 2005.COA of Formula: C4H2F2N2 This article mentions the following:

In the crystal structure of the title compound, C20H20N2O4, the mols. are linked by a weak intermol. C-H···N H bond. The mol. has crystallog. 2-fold rotation symmetry. Crystallog. data are given. In the experiment, the researchers used many compounds, for example, 3,6-Difluoropyridazine (cas: 33097-39-1COA of Formula: C4H2F2N2).

3,6-Difluoropyridazine (cas: 33097-39-1) belongs to pyridazine derivatives. The pyridazine structure is a popular pharmacophore which is found within a number of herbicides such as credazine, pyridafol and pyridate. The activity depends upon the changes of substituted groups in the pyridazine ring system resulting in different biological activities. In addition, the natural pyrimidine bases uracil, thymine, and cytosine, which are constituents of the nucleic acids, are found to be the most important naturally occurring diazines.COA of Formula: C4H2F2N2

Referemce:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem